Machine for cutting cloth on the bias.



No. 819,431. PATENTED MAY 1, 1906.

- B. HURD.

MACHINE FOR CUTTING CLOTH ON THE BIAS.

2 SHEETSSHEET 1.

witmeoaea gvwentoz i @2914 \fltrowu Z 2 7 1w? $3M PATENTED MAY 1, 1906-B. HURD.

MACHINE FOR CUTTING CLOTH ON THE BIAS.

APPLICATION FILED MAR.Z5, 1901.

2 SHEETS-SHEET 2.

W avwentoz Q/Vih lcoaeo UNITED STATES PATENT OFFICE.

BENJAMIN HURD, OF EW YORK, N. Y. MACHINE FOR cur-nus CLOTH on THE' ems.

Specification of Letters 2mm. Application am much 25.1901. Serial m.62,788-

Patented May 1, 190a.

Toall whom it may concern Be it known that I, BENJAMIN HURD, a

citizen of the United States, residing at New knives or shearsreoiluiring successive cuts and rearrangement .of t e .cloth by theoperators. According to my invention I propose to feed the cloth incontinuous wide str1 s to a proper number of circular cutting- 'vessuitably placed apart to cut the desired widths of strips, the webof'the cloth being at an angle to t e knives, and to provide suitablemeans for maintaining the pro or alinement and tension of the cloth anfor preventing the cloth from creeping. from one side to the other.

- The invention-also comprehends other features, which willbe referredto hereinafter.

In the accompanying drawings, in which I have illustrated a machineembodying mymvention, Figure 1 is a plan view of the machine. Fig. 2 isa sectional side view of the same, and Figs. 3 and 4 are detail viewsshowing the driving-gears on the respective sides of the machine.

Referring more particularl to the drawings, 1 represents a suitab eframe upon .whlch are mounted on opposite sides of the machine the sideplates 2 and 3. The arms 4 5 extend outward from the opposite ends ofthe side plates 2 3 and carry suitable bearings for the rollers 6 7.Rollers 8 and 9 are mounted in suitable bearings in the plates 2 and 3,all of said rollers 6, 7, 8, and 9 being parallel to each other. Endlessbands 10 and 11 are carriedby rollers 6 and 8 and 7 and 9, these bandsbeing preferably of material having a frictional surface, such as felt.Upon the ends of the shafts of rollers 8 and 9 are fixed the gear-wheels12 and 13, the former having a few more teeth than the latter in orderto rotate'slower, for a purpose hereinafter referred to. Gear-wheels 12and 13 both mesh with a gear 14, mounted upon shaft 15, which isjournaled in the frame and carries the power-driven pulle 16. Upon theopposite ends of the shafts o rollers 8 and 9 are carried gears 17 and18, which .mesh with gears 19 and 20, carried by the'ends of rolls 21and 22, which'are journaled in the side plates and impin e against therollers 8 and 9 sufliciently tig t' to engage the cloth to be outbetween the rolls and draw the samethrough the machine. In order thatthe cloth, which is fed to the rollers with its web a at an angle, manot be forced toward .one side by the rol ers, the rollers 21 and 22-should be covered with felt or other yielding material. The roller 23 ofwood or other similar material is suitably journaled in the side platesof the machine and its shaft at one 'end carries the gear-wheel 24,which meshes with gear wheel '25 upon the shaft 15. Swinging bearings 2626' are pivoted to the sides of the machine at 27 27 and arranged toswing into engagement with the blocks 28 28,

the latter being provided with pivoted thumbnuts 29, which enter a slot30 in the end of the bearing, and thus hold the same in engagement withthe block.

A screw-threaded rod 31, swiveled in the frame at'32', engages athreaded nut 33 on the block 28, whereby the position ofthe block (andthus the osition of the bearings 26) may be adjuste and without disturb'the adjustment the bearings may be release and swung back. I The shaft34 is journaled in the bearings 26, and fitted thereon are a pluralityof circular knives or disks 35, separated by rings 36, each of aproximately the desired width of'the strip to e cut. The rings andcutting-disks should, in order: to permit of easy adjustment of themachinefor cutting various widths of strips, "be made removable.

This is easily accom lished by alternately slipping the rings an diskson the shaft 34 and clamping the rin s and disks against each other bymeans of t e washers 37, screwed upon the o posite ends of the shaft.'The bearing of s aft 34 is so. adjusted withreference to the positionof shaft 23 that that ortion of the periphery of the cuttingsks which isto cut the cloth shall impingeagainst the roller 23 at the oint ofmaximum support of the cloth. T 's insures that the cloth will at thepoint of cutting be supported underneath by the roller 23. Thearrangement is shown more particularly in 2. The shaft 34 is rotated byany suita 1e means, preferably by an independent power, such as anelectric motor, direct-connected, belted, or

geared to shaft 34 in any well-known manner. The cutting-disks should berotated at a higher rate of speed than that at which shaft 23 rotatesand either in the same direction as that in which shaft 23 rotates or inthe opposite direction. The bearings of rollers 21 and 22 are adjustedwith respect to roll ers 8 and 9 by means of the side screws 38, and thebearings of rollers 6 and 7 are adjusted by means of side screws 39.

In the operation of the machine a continuous web of cloth with biasthreads is fitted by sewing to ether a number of stri s a b c, as shownin ig. 1, and this web is la1d upon the endless band 10 and the machinestarted in motion. The cloth is first engaged by the rollers 22 and 9and drawn farther into the machine thereby. The cloth then passes .overthe roller 23 and intoengagement with the rollers 21 and 8 and afterassing through this roller is carried toward t e opposite end of themachine b the band 11. The rotating disks 35 cut t e cloth at the timeit is rising upon the roller 23, and the slightly-faster rotation ofrollers 21 and 8, caused by theless number of teeth of gear 13, insuresthat the cloth will be held in proper tension at the time it is beingcut. a

The elasticity of the felt covering of the rollers 8, 9, 21, and 22permits the rollers to be adjusted closely enough together to engage thecloth' and carry it through the machine; but at the same time when theseams 40 pass by the rollers that portion of the rollers between whichthe seams happen to be passing will yield momentarily, an thus prevent t1e cloth from being pushed to one side, as would be the case if thediagonally-positioned seam engaged unyieldin rollers.

It will be understood that t e invention herein described is capable ofvarious modifications, and I therefore do not limit myself to theprecise construction herein shown.

Having thus described my invention, I declare that what I claim as new,and desire to secure by Letters Patent, is

1. In a machine of the character described, the combination with thecuttin -disk and sup orting-roller, of two pairs 0' yieldingsurfaicedfeeding-rollers one for conveying the web to and the other from thecuttin -disk, gear-wheels fixed to the shafts of sai feeding-rollers,and a cog meshing with and drivin said gear-wheels; the ear-wheel on thero ler conveying the web from the cuttingdisk having fewer teeth thanthe other gearwheel, thereby rotating said roller at a higher rate of seed than the first, substantially as as descri ed.

2. In a machine of the character described, the combination with thecuttin -disk and sup orting-roller, of two pairs 0 yieldingsu acedfeeding-rollers one for conveying the web to and the other from thecutting-disk, said feeding-rollers being covered with yielding material,and gear-wheels fixed to the shafts of said feeding-rollers, and a cogmeshing with and drivin' said gear-wheels; the

ear-wheel on the ro ler conveying the web om the cuttingisk having fewerteeth than the other ear-wheel, thereby rotating said roller at asubstantially as described.

3. In a machine of the character described, thf. combination with twopairs of feedingrollers, one for conveying a web of uneven thickness toand the other from the cuttingdisk, of means for causing said web toadhere to said feeding-rollers while passing there through,substantially as described.

4. n a machine of the character described, the combination with two airsof fee dingrollers, of a supporting-r0 er intermediate said pairs offeeding-rollers and adapted to raise the Web of the cloth between saidpairs of rollers, a cuttin disk or disks cutting against saidsupporting-roller and having the cutting edge thereof in contact withthe cloth atits maximum point of sup ort, and means for rotating saiddisk or disks at a difi'erent rate of s eed from that at which thesupporting rol er is rotated, substantially as described.

5. In a machine of the character described, the combination of two pairsof feeding-rollers, said rollers being covered with yielding frictionalmaterial, a sup orting-roller intermediate said pairs of eeding-rollersand adapted to raise the web of the cloth therebetween, an indeendently-rotated shaft, a plurality of circu ar disks and ringsalternately spaced on said shaft, the cutting edge of said disks cuttingagainst said supporting-roller at the maximum point of support of thecloth and means for rotatim one of said pairs of feeding-rollers at ahigher rate of speed than that at which the other is rotated,substantially described.

6. In a machine of the character described, the combination of two pairsof feeding-rollers, said rollers being covered with yielding frictionalmaterial, a supporting-roller intermediate said pairs of feeding-rollersand adapted to raise the web of the cloth therebetween, anindependently-rotated shaft, a plurality of circular disks and ringsalternately spaced on said shaft, the cutting edge of said disks cuttingagainst said supportin -roller at the maximum point of su port of t ecloth and means for adjustin t e relative positions of said feeding-diss and supporting gher rate of speed than the first,

- preventing said web from gucker' or crespmg when being cut, sustantial y'as escribed. Y

8: In a machine of the character described 5 the combination with thecutting-disks, oifeeding-rollers adapted to deliver a web of cloth tothe cutting-disks and present the same thereto at an angle to the web,"and 'elding means for reventing sidewise creepxo mg of said web, sustantiallyas described;

' 9. In a machine of the character described, the combination of 'ashaft carr a pluralit of spaced cutting-disks, feed-r01 ers adapted todeliver a web of cloth to said cutting- I 5 disks at an angle to theweb, yielding means for preventing sidewise creeping of said web, andmeans for-removinlg the web from the cutting-disks, substantia y asdescribed.

10. In a machine of the character d e 2o scribed, the combination withthe cuttingdisks, of two pairs of rollers adapted to feed webs of vathickness diagonally cutters in the rear o i gid rollers adapted tociit'stri s from said web onthe bias, and means, or smoothing the web,substantially as described.-

11. In' a machine of the character described, the combination of a shaftcarrying i a pluralit of spaced cutting-disks, two' sets I of fee d-rolers on op osite sides thereof adapted to feed a web- 0 varyingthickness at an angle to the cutters, andmeans causing the we points 1to adhere to the feed-rolls at all as it passes through, substantiallyas des' scribed.

In testimony whereof I aflin my signature

